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Basic Addition Lesson 10: Number 10

Here's an easy example:

10
+
1
=
11
 
                    
+
  
=
                      
 
   Pink Box   MediumPurple Box   Fuchsia Box   Wheat Box   Purple Box   CadetBlue Box   Aquamarine Box   DarkGoldenrod Box   Lavender Box   DarkKhaki Box  plus     DarkBlue Box  equals     Pink Box   MediumPurple Box   Fuchsia Box   Wheat Box   Purple Box   CadetBlue Box   Aquamarine Box   DarkGoldenrod Box   Lavender Box   DarkKhaki Box   DarkBlue Box

We start with ten boxes, add one box, and now have eleven boxes.


Here's another example:

10
+
2
=
12
 
                    
+
    
=
                        
 
   ForestGreen Box   YellowGreen Box   MediumSeaGreen Box   MediumSlateBlue Box   SandyBrown Box   MidnightBlue Box   SeaGreen Box   HotPink Box   DodgerBlue Box   DarkOrchid Box  plus     Olive Box   Turquoise Box  equals     ForestGreen Box   YellowGreen Box   MediumSeaGreen Box   MediumSlateBlue Box   SandyBrown Box   MidnightBlue Box   SeaGreen Box   HotPink Box   DodgerBlue Box   DarkOrchid Box   Olive Box   Turquoise Box

We start with ten boxes, add two boxes, and now have twelve boxes.


Try this problem.

10
+
3
=
 
                    
+
      
=
                          
 
   SlateBlue Box   Brown Box   Gold Box   Chartreuse Box   Coral Box   OliveDrab Box   MediumTurquoise Box   DarkMagenta Box   Orchid Box   DarkOrange Box  plus     Pink Box   MediumPurple Box   Fuchsia Box  equals     SlateBlue Box   Brown Box   Gold Box   Chartreuse Box   Coral Box   OliveDrab Box   MediumTurquoise Box   DarkMagenta Box   Orchid Box   DarkOrange Box   Pink Box   MediumPurple Box   Fuchsia Box

We start with ten boxes, add three boxes, and now have thirteen boxes.


In order to do basic addition, you must memorize some equations but fear not: FoxyMath will help you! When you are finished with this lesson, you will know the following equations:

10 + 1 = 11
10 + 2 = 12
10 + 3 = 13
10 + 4 = 14
10 + 5 = 15
10+ 6 = 16
10 + 7 = 17
10 + 8 = 18
10 + 9 = 19
10 + 10 = 20
10 + 11 = 21
10 + 12 = 22


The following exercise will help you learn the above equations and what they mean. Please take your time: take whatever time you need to learn the material.

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